Bottle cap



FIG. 1 is a perspective view of a bottle cap, shown in a position of use on a bottle drawn in broken lines.

FIG. 2 is a top view of the bottle cap of FIG. 1, shown removed from the bottle.

FIG. 3 is a side view thereof; and,

FIG. 4 is a front view thereof.

The broken lines depict environment and form no part of the claimed design. 

CLAIM The ornamental design for a bottle cap, as shown and described. 